Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
canh nhung » anh nhung, hanh nhung, doanh nhung
hoc thieu » toc thieu, hoc hien
nhung ba » nhung bai, nhung bac, nhung bi
ba nhung » ban nhung, va nhung, ba hung
cong san » cong tac
toan tap » toan ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu sach - canh nhung ba nhung ((cong san) OR (huong dan)) toan tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu sach - canh nhung ba nhung ((cong san) OR (huong dan)) toan tap".
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - canh nhung ba nhung ((cong san) OR (huong dan)) toan tap*.